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Stock recommendation is vital to investment companies and investors. However, no single stock selection strategy will always win while analysts may not have enough time to check all S&P 500 stocks (the Standard & Poor's 500). In this paper,…

交易与市场微观结构 · 定量金融 2025-11-18 Hongyang Yang , Xiao-Yang Liu , Qingwei Wu

Automatic machine learning (AutoML) is a key enabler of the mass deployment of the next generation of machine learning systems. A key desideratum for future ML systems is the automatic selection of models and hyperparameters. We present a…

机器学习 · 计算机科学 2022-02-22 Moe Kayali , Chi Wang

The rollout of new versions of a feature in modern applications is a manual multi-stage process, as the feature is released to ever larger groups of users, while its performance is carefully monitored. This kind of A/B testing is…

机器学习 · 计算机科学 2018-05-29 Andrés Muñoz Medina , Sergei Vassilvitskii , Dong Yin

Industrial timetabling is a critical task for decision-makers across various sectors to ensure efficient system operation. In real-world settings, it remains challenging because unexpected events often disrupt execution. When such events…

人机交互 · 计算机科学 2026-01-13 Kévin Ducharlet , Liwen Zhang , Sara Maqrot , Houssem Saidi

Existing recommendation systems can help developers improve their software development abilities by recommending new programming tools, such as a refactoring tool or a program navigation tool. However, simply recommending tools in isolation…

软件工程 · 计算机科学 2021-02-09 Dylan Bates

Self-training is a simple yet effective method within semi-supervised learning. The idea is to iteratively enhance training data by adding pseudo-labeled data. Its generalization performance heavily depends on the selection of these…

机器学习 · 统计学 2023-03-03 Julian Rodemann , Christoph Jansen , Georg Schollmeyer , Thomas Augustin

Scientific software applications are increasingly developed by large interdiscplinary teams operating on functional modules organized around a common software framework, which is capable of integrating new functional capabilities without…

性能 · 计算机科学 2013-09-10 Azamat Mametjanov , Boyana Norris

Deep learning (DL) models have become core modules for many applications. However, deploying these models without careful performance benchmarking that considers both hardware and software's impact often leads to poor service and costly…

机器学习 · 计算机科学 2021-01-06 Huaizheng Zhang , Yizheng Huang , Yonggang Wen , Jianxiong Yin , Kyle Guan

Recent progress in semi- and self-supervised learning has caused a rift in the long-held belief about the need for an enormous amount of labeled data for machine learning and the irrelevancy of unlabeled data. Although it has been…

机器学习 · 计算机科学 2023-03-14 Minwook Kim , Juseong Kim , Giltae Song

Bat algorithm (BA) is a recent optimization algorithm based on swarm intelligence and inspiration from the echolocation behavior of bats. One of the issues in the standard bat algorithm is the premature convergence that can occur due to the…

神经与进化计算 · 计算机科学 2018-05-16 Asma Chakri , Rabia Khelif , Mohamed Benouaret , Xin-She Yang

In this paper, we consider the problem of allocating human operators in a system with multiple semi-autonomous robots. Each robot is required to perform an independent sequence of tasks, subjected to a chance of failing and getting stuck in…

机器人学 · 计算机科学 2021-11-15 Abhinav Dahiya , Nima Akbarzadeh , Aditya Mahajan , Stephen L. Smith

Multi-task learning (MTL) aims to improve the performance of multiple related prediction tasks by leveraging useful information from them. Due to their flexibility and ability to reduce unknown coefficients substantially, the…

机器学习 · 计算机科学 2022-12-01 Yuzhao Zhang , Yifan Sun

The last decade has witnessed many successes of deep learning-based models for industry-scale recommender systems. These models are typically trained offline in a batch manner. While being effective in capturing users' past interactions…

With today's public data sets containing billions of data items, more and more companies are looking to integrate external data with their traditional enterprise data to improve business intelligence analysis. These distributed data sources…

数据库 · 计算机科学 2012-05-16 Ahmad Assaf , Eldad Louw , Aline Senart , Corentin Follenfant , Raphaël Troncy , David Trastour

Modern database management systems (DBMS) expose hundreds of configurable knobs to control system behaviours. Determining the appropriate values for these knobs to improve DBMS performance is a long-standing problem in the database…

数据库 · 计算机科学 2024-12-02 Jiale Lao , Yibo Wang , Yufei Li , Jianping Wang , Yunjia Zhang , Zhiyuan Cheng , Wanghu Chen , Mingjie Tang , Jianguo Wang

Recent work shows that post-training datasets for LLMs can be substantially downsampled without noticeably deteriorating performance. However, data selection often incurs high computational costs or is limited to narrow domains. In this…

计算与语言 · 计算机科学 2025-09-25 Paramita Mirza , Lucas Weber , Fabian Küch

Instruction tuning is a standard technique employed to align large language models to end tasks and user preferences after the initial pretraining phase. Recent research indicates the critical role of data engineering in instruction tuning…

计算与语言 · 计算机科学 2024-04-17 Wei Liu , Weihao Zeng , Keqing He , Yong Jiang , Junxian He

Index tuning aims to find the optimal index configuration for an input workload. It is often a time-consuming and resource-intensive process, largely attributed to the huge amount of "what-if" calls made to the query optimizer during…

数据库 · 计算机科学 2025-05-06 Xiaoying Wang , Wentao Wu , Chi Wang , Vivek Narasayya , Surajit Chaudhuri

When dealing with control systems, it is useful and even necessary to assess the performance of underlying transfer functions. The functions may or may not be linear, may or may not be even monotonic. In addition, they may have structural…

统计理论 · 数学 2018-06-28 Nadezhda Gribkova , Ričardas Zitikis

This study introduces the Instance-Aware Index Advisor (IA2), a novel deep reinforcement learning (DRL)-based approach for optimizing index selection in databases facing large action spaces of potential candidates. IA2 introduces the Twin…

数据库 · 计算机科学 2024-04-11 Taiyi Wang , Eiko Yoneki